198107440

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{10909}}^1$

素因数の和:11149

約数の個数: 40

約数和(自身を含む): 462671280

約数和(自身を除く): 264563840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1816, 2270, 3632, 4540, 9080, 10909, 18160, 21818, 43636, 54545, 87272, 109090, 174544, 218180, 436360, 872720, 2476343, 4952686, 9905372, 12381715, 19810744, 24763430, 39621488, 49526860, 99053720, 198107440]

約数ペア:

[(1, 198107440), (2, 99053720), (4, 49526860), (5, 39621488), (8, 24763430), (10, 19810744), (16, 12381715), (20, 9905372), (40, 4952686), (80, 2476343), (227, 872720), (454, 436360), (908, 218180), (1135, 174544), (1816, 109090), (2270, 87272), (3632, 54545), (4540, 43636), (9080, 21818), (10909, 18160)]